baber/WOPTO huggingface dataset:
Patent GB-183428-A (GB)
Title: Manufacture of sulphonic acids of the 2:3-oxynaphthoic acid arylides
Filed: 1922-05-23
Abstract: Sulphonic-acids of 2 : 3 - oxynaphthoic arylides are obtained by sulphonating the parent arylides obtainable as described in Specifications 13237/13 and 23732/13; they can be used in the manufacture of dyestuffs.  According to examples b -oxynaphthoic anilide is sulphonated with sulphuric acid of 66 DEG  B<\>ae., and b -oxynahthoic 4-chlor-2-toluidide with sulphuric acid monohydrate.
Patent GB-320641-A (GB)
Title: Process for the manufacture of derivatives of carbazole
IPC: C07D209/88
Filed: 1928-05-17
Abstract: 320,641. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). May 17, 1928. Samples furnished. 1-Amino-and-substituted amino-carbazols are obtained by mononitrating a carbazolsulphonic acid having at least one free 1- or 8- position, reducing the resulting 1- or 8-nitrocarbazolsulphonic acid, and splitting off the sulphonic groups by heating under pressure, if desired after replacing the amino group by a substituted amino group by normal reactions. Acid may be added to facilitate removal of the sulphonic groups. According to an example, carbazol-3 : 6 : 8-trisulphonic acid, prepared by sulphonating carbazol with oleum at 100‹ C., is mononitrated and the product reduced with iron and acetic acid to give 1-aminocarbazol- 3: 6 : 8-trisulphonic acid, which is then heated with dilute sulphuric acid in an autoclave to remove all three sulphonic groups.
Patent GB-688600-A (GB)
Title: Improved method of joining a helical corrugated all-metal tube to a connecting-piece
IPC: B21D39/04
Filed: 1951-06-19
Abstract: 688,600. Making pipes. METALLSCHLAUCHFABRIK AKT.-GES. June 19, 1951 [June 30, 1950], No. 14551/51. Class 83 (ii). A helical corrugated metal tube end is deformed to a cylindrical shape, a connecting piece is introduced into the deformed end and tightly forced against the inside wall thereof and is finally electric resistance welded thereto. In an embodiment a mandrel having helical ribs of increasing width is introduced into the helically corrugated tube end 1 to expand the corrugations and rotary rollers finally flatten the corrugations to form a smooth cylindrical end 1<SP>1</SP>. A reduced end 6<SP>1</SP> of a connecting piece 6 is fitted within the end 11 and a mandrel 7 having a collar 8 is passed through the interfitting tubes to expand the end 6<SP>1</SP> into tight contact with the end 1<SP>1</SP>. Electric resistance welding is effected at the overlapping ends 11, 61.
Patent GB-154514-A (GB)
Title: An improved apparatus for refining oils and fats whereby they are deodorised and their acidity is reduced
IPC: C11B3/14
Filed: 1920-02-26
Abstract: 154,514. Vakil, K. H. Feb. 26, 1920. Fats and fatty oils, purifying. -In refining and removing fatty acids from'vegetable, animal and fish oils and fats as described in Specification 155,020, the oil is heated to 220-300‹ F. by passage through a heat exchanger 2 and an electric heater 3 and is sprayed into a refining tower 5 in which it meets an ascending current of carbondioxide or of carbon-dioxide and nitrogen heated if necessary by a heater 8. The partly refined oil may be circulated by a rotary pump 4 and is discharged through the heatexchanger 2 to a reservoir 27. The carbon dioxide and the vapours pass through a separator 9 to a heat exchanger 10 and thence after admixture with steam in a jet 11 to a condenser 12. Fatty acids condense and collect in receivers 23, 24. The gases may be scrubbed with oil in a scrubber 14 and are led to a gas-holder or are returned through the heat-exchangers 19, 10 to the tower 5. Cooling water passes first through a cooler 15 through which the oil from the scrubber 14 is circulated, then through the condenser 12 and then through the heat-exchanger 19.
Patent GB-593116-A (GB)
Title: Improved stitching forceps
IPC: A61B17/04
Filed: 1945-06-09
Abstract: 593,116. Hand sewing-tools. MAYHEW, C. J. June 9, 1945, No. 14655. [Class 112] Stitching forceps comprise a limb carrying an eye-ended needle a and a limb b carrying means for picking up the thread from the needle. In the form shown the latter means comprise a pair of spring members b' fixed to the limb b and tormed with pairs of meeting fingers c, d; the needle spreads the members b<1> by engaging.the fingers d, so as to open the fingers c and allow the thread to pass them and be retained when the fingers close on withdrawal of the needle In a modification, Fig. 2 (not shown), the limb b carries a rotating pawl which is turned through 90 degrees by the insertion of the needle and turns back, to enter the thread loop, by friction with the needle as the latter starts to be withdrawn.
Patent GB-822767-A (GB)
Title: Method of fixing tiles, slabs and the like to walls
Inventor: BLAKE HENRY RICHARD
IPC: E04F13/08
Filed: 1957-05-08
Abstract: 822,767. Wall coverings; building slabs. SHAWS GLAZED BRICK CO. Ltd. April 29, 1958 [May 8, 1957], No. 14655/57. Classes 20(4) and 87(1) Facing tiles or slabs T having a groove 10 in a horizontal edge are fixed to a wall by laying a tie rod 13 in grooves between adjacent courses and securing a wire 14 to the wall at intervals from the rod. A nick or slot 11 is made from the groove 10 to the rear face of the tile and a cut out 12 is made forwardly of the groove, the tiles being secured together by cement. The wire 14 is looped at 15 around the rod 13 and extends through the slot 11. Holes may be made in the bottom of the grooves to contain clips retaining the rod, Fig. 3 (not shown), or to contain clips entering holes in both upper and lower tiles for securing purposes, these clips having half loops 20 to pass round the rods.
Patent GB-716219-A (GB)
Title: Improvements in roundabouts
IPC: A63G1/38
Filed: 1952-06-11
Abstract: 716,219. Roundabouts. JEFFREY, D. H., and JACKSON, H. P. June 10, 1953 [June- 11, 1952], No. 14656/52. Class 132(1) A roundabout rotatable about an inclined axis comprises an annular rotatable platform A formed by sections mounted on battens a carried by a central hub a' which is mounted on a spindle a" resting in a bearing b on top of a pillar B, the battens having runners a<SP>4</SP> at their outer ends travelling over a track C, and a second segmental platform D, which supports car; or seats, mounted on battens d having their inner ends loosely mounted on the spindle and their outer ends carrying runners d engaging a track d<SP>2</SP> on the main platform Preferably the lower end of spindle a forms a ball to engage hemispherical bear ing b. The outer ends of battens a carry legs a<SP>3</SP>, whose lengths vary as shown, Fig. 2, mounted on runners a<SP>4</SP> which engage circular track C also supported on pillars c whose lengths vary as shown in Fig. 2. Platform A is driven by electric motor E<SP>1</SP> through gearing. As platform A rotates the runners a<SP>4</SP> travel over track C and cause the inclination of platform A to vary. Platform D may oscillate as platform A rotates or may rotate in the same or the opposite direction. A brake may be provided to vary the motion of the platform D.
Patent GB-377638-A (GB)
Title: Method and device for manufacturing screw nuts
IPC: B21K1/64
Filed: 1932-05-24
Abstract: 377,638. Making nuts. SYVERSEN, S. G., Nydalen, near Oslo. May 24, 1932, No. 14705. Convention date, June 4, 1931. [Classes 83 (ii) and 83 (iv).] In a machine for making nut blanks by the cold process, a bar, fed through a guide 5, is positioned by an end stop 6 and a blank is severed by a tool 1 fitted with spring fingers 3. The blank is transferred to a guide 7 and is punched by a tool 8 co-operating with a die 9. A recess 10 in the die forms the chamfer on the blank. The tools 1, 8 are withdrawn and the blank drops by gravity in front of a die 13. A tool 12 is then advanced to push the blank through the die 13.
Patent GB-1044339-A (GB)
Title: Improvements in or relating to heat engine combustion systems
IPC: F02G1/04
Filed: 1963-04-11
Abstract: 1,044,339. Charging I.C. engines; combustion chambers. A. S. RICHARDSON. April 11, 1963, No. 147l7/6 Heading F1B. In an I.C. engine, piston 4 of compressor cylinder 2 and piston 16 of power cylinder 17 are arranged on a single double-throw crankshaft 7. Air or mixture, from a carburetter or fuel pump, drawn in through inlet valve 8 is compressed in cylinder 2 and passes through outlet valve 9 to duct 10 leading tangentially into a preheating chamber 13. Fuel may be injected into the air stream by an injector which communicates with a pre-combustion chamber (not shown) within housing 11. Alternatively, fuel may be injected directly into chamber 14. The mixture passing through bores 15 is ignited by compression or spark ignition in chamber 14 and heats air or, in a closed cycle, a non- inflammable gas, previously inducted through piston-controlled ports into cylinder I which expands to move piston 16 until exhaust port 19 is opened. The latter air or gas prevents the combustion products from impinging on the cylinder walls or piston crown. Scavenge air may be admitted through a port connected to passage 20. A separate air or gas inlet valve may be provided at the cylinder head. In modifications, combustible mixture or air is obtained from a pressure vessel or ring main and an additional valve controls the admission of air or mixture into the preheating chamber.
Patent GB-770726-A (GB)
Title: Improvements in vehicle brakes
IPC: B60T1/06
Filed: 1955-05-21
Abstract: 770,726. Vehicle brakes; wheel rims. HARVEY, J. W. May 21, 1955, No. 14722/55. Classes 103 (1) and 144 (2). A vehicle brake is actuated by supply of fluid pressure to circumferentially spaced cylinders 34 so that an annular plate 16 having a conical external surface is moved axially to engage and push out radially circumferentially spaced brake shoes 10, the shoes causing through rocker levers 8 a simultaneous inward movement of the split wheel rim parts 3 and 4 so as to laterally compress the tyre, thus producing a resistance to outward movement of the shoes 10 with resulting friction between the plate 16 and the shoes. In an alternative embodiment, shown in Fig. 3, the lateral movement of the wheel rims against the sides of the tyre may be produced by a sprocket wheel 38 between racks on the shoes 35 and rim part 39.
Patent GB-235009-A (GB)
Title: Improvements relating to water gauge protectors and illuminators
IPC: G01F23/02
Filed: 1924-06-18
Abstract: 235,009. Hopkinson, R. A., Brown, R. L., and Hopkinson & Co., Ltd., J. June 18, 1924. Gauge glasses. - An illuminated water gauge is provided with a rear shield having a vertical slot covered by a strong transparent screen k, behind which a lamp box is secured. The gauge glass a is surrounded by front and rear shields. The lamp box m has an open front and slides in guides n.
Patent GB-814604-A (GB)
Title: Convection heaters
IPC: F24B1/188
Filed: 1955-05-23
Abstract: 814,604. Heating air. UWINS, C. C. G. July 25, 1956 [May 23, 1955], No. 14853/55. Class 64(3) In a convection air heating unit associated with a domestic open fire in which air to be heated is drawn into a base chamber under the fire, the air is directed by baffles or fins into the centre and thence to the rear of that chamber before passing to back and side chambers behind the fireback. In the form shown, the air enters the base chamber 20 (Figs. 2 and 3) through side openings covered by expanded metal grids 21 to exclude vermin, and is directed by baffles 22, 23, 24 to the centre and thence to the rear of the chamber passing thence in part through a rear opening 25 (Fig. 2) leading to a back chamber 27 (Fig. 5) and in part through ports 26 (Fig. 3) leading to side chambers 28 (Fig. 10). The heated air passes out of the unit through ports 35 (Figs. 5 and 10) leading to distribution ducts (not shown). The chambers may be formed as a single unit or as a plurality of units independent before assembly. Specifications 749,073 and 752,078 [Group XI] are referred to.
Patent GB-790209-A (GB)
Title: Production of cross-linked plastics
IPC: C08G18/22
Filed: 1954-05-20
Abstract: Cross-linked non-foamed polymers are obtained by polymerizing, in the presence of a catalyst capable of inducing polymerization by the coupling, suitable for printing rollers, swing screens for ore dressing, gear wheels and protheses, of isocyanate groups, a reaction product containing isocyanate groups obtained by reacting a compound containing more than one active hydrogen atom with an excess of a monomeric polyisocyanate.  A compound containing only the active hydrogen atom may be used in admixture with the compound containing more than one hydrogen atom.  The catalyst may be present in the preliminary starting materials or added to the resulting reaction product.  Suitable catalysts are tertiary amines and, for aliphatic or hydroaromatic isocyanates, metallic compounds soluble in organic solvents, e.g. ferric acetyl acetonate.  The products may be rubbery or rigid, depending on the degree of cross-linking.  The suitability of a substance as a catalyst can be determined by testing at 140 DEG C. with a polyisocyanate-modified dehydrated adipic acid ethylene glycol polyester containing 2.1 per cent by weight of isocyanate groups. Any resulting polymerization is determined by measuring the viscosity of the polyisocyanatemodified polyester at its melting point.  Suitable reaction products for polymerizing may be derived from polyisocyanates and mono- or polyhydric alcohols, amines, amino-alcohols, carboxylic acids, amides, diolureas, diol guanidines, hydrazines, unsaturated fatty acids, e.g. oleic and dihydromuconic, saturated or unsaturated linear or branched polyesters, polyesteramides, polyglycol ethers, polyamides and polymethanes. Polyisocyanates may be aliphatic or aromatic or reaction products such as the product of 3 mols. tolylene diisocyanate and 1 mol. trimethylolpropane.  The process may be effected in the presence of a sun-reactive solvent whereby coatings or adhesives may be produced. The usual additives may be present.  In examples: (1) an adipic acid-diethylene glycol polyester is reacted with an excess of hexamethylene diisocyanate and a small proportion of ferric acetonyl acetonate added.  After subjection to vacuum to remove gases the bubble-free melt is cast and heated for 15 hours at 120 DEG  C. to give a rubber with good damping properties suitable for making swing screens for ore dressing.  (2) A polyethylene oxide of hydroxyl number 61.5 is reacted with a small proportion of terephthalic acid chloride and excess of tolylene diisocyanate.  A catalyst derived from 1 mol. N-methyl diethanolamine and 2 mols. of phenyl isocyanate was added, after removing gas, and the mixture heated for 12 hours to give a cross-linked insoluble rubber.  Specification 700,617 is referred to.
Patent GB-1316729-A (GB)
Title: Optical filter
IPC: G02F1/125
Filed: 1972-03-30
Abstract: 1316729 Modulating light INTERNATIONAL BUSINESS MACHINES CORP 30 March 1972 [27 May 1971] 14973/72 Heading H4F Acoustic surface wave produced by a transducer 48 on a substrate 42 of lithium niobate or quartz act on the surface of an optical waveguide 44 so that, via the photo-elastic effect, a light wave propagating therein in a first mode, e.g. TE 0 , is converted to a wave having a second, different, mode, e.g. TE 1 , when a phase matching condition is satisfied by the optical and acoustic waves insofar as the dispersion curves (18, 20) for the two modes are not parallel, Fig. 2 (not shown), such mode conversion only occurs for a particular optical frequency determined by the acoustic frequency and by rejecting optical waves in the first mode and passing waves in the second mode the device acts as an optical filter which is tuned by varying the acoustic frequency. As shown in Fig. 5, the optical wave is introduced into guide 44 by a grating 46, and a second grating 50 directs the different modes out of the guide in different directions 54, 56, a stop 58 selecting the light derived from the second mode wave. An aluminium layer 40 separating guide 44 and substrate 42 allows flexibility in the choice of materials therefor. In a second embodiment, Fig. 4 (not shown), a light pipe (30) couples the light into the guide, and the acoustic transducer is disposed on the guide or directly on the substrate, the aluminium layer 40 being omitted. A metal plate (28) is disposed in the guide at a position where the electric field for the first and second modes has a non-zero and a zero value respectively, whereby the first mode is selectively blocked or rejected.
Patent GB-499181-A (GB)
Title: Improvements in or relating to the treatment of driving belts
Filed: 1938-05-19
Abstract: A coating-material for treating driving-belts consists of a viscous sticky mass obtained by heating a mixture of drying oil, such as linseed oil and castor oil, to temperatures of 250-340 DEG  C. for several hours.  Siccatives and/or polybasic organic acids may be added to the mixture in which case the temperature used is 250-280 DEG  C.
Patent GB-1481283-A (GB)
Title: Domestic centrifugal draining appliances
IPC: F16H1/10
Filed: 1975-04-11
Abstract: 1481283 Centrifugal strainer MOULINEX SA 11 April 1975 [24 April 1974] 15000/75 Heading B1D [Also in Division F2] A gear assembly, for a domestic centrifugal strainer for drying lettuce, comprises an internally toothed bell-type gear 18 meshing with a pinion 20, the gear and pinion both making resilient snap connections with plate 12, central stub shaft 28 on the gear and stub shaft 32 on plate 12 having diametrical grooves and lugs 40, 42 which facilitate their insertion in bores 30 and 34 respectively, the lugs thereafter engaging shoulders 44, 46 to allow the gear and pinion to rotate. The gear, pinion and plate 12 are made of resilient plastics and the construction facilitates mass production and automatic assembly. Gear 18 has a handle 48, plate 12 forms the lid of the centrifuge housing and pinion 20 supports the centrifuge basket (Fig. 1, not shown). Raised portion 22 of plate 12 accommodates pinion 20 and is cut away at 26 to allow the pinion and gear to mesh. Portion 22 is extended by arcuate walls (56, 58, Fig. 3, not shown) which guide the inner wall of skirt 19 of gear 18.
Patent GB-1282205-A (GB)
Title: Improvements in and relating to servo motors for vehicle brake systems
Inventor: WEATHERHOGG CHARLES BRIAN
IPC: B60T13/57
Filed: 1970-03-31
Abstract: 1282205 Brake system servo motors GIRLING Ltd 19 April 1971 [31 March 1970] 15103/70 Heading F2F A servo booster, for a vehicle brake system, of the type described in Specification 1,144,567 with a pair of chambers, separated by an axially displaceable diaphragm, and one of which is connected to vaccum, and a valve assembly 10 comprising a valve seat member 12 having a pair of concentric circular valve seats 24, 26, passages 28 communicating with the other chamber and an annular elastic valve closure member 16 conically deformable under the action of a deflecting member 14 to connect together the chambers or connect one to atmosphere has means in the form of an annular leaf spring or an annular spring steel shim for biasing the member away from the valve seats when at least one is engaged by the member to enhance subsequent lifting of the member from the seat.
Patent GB-1204540-A (GB)
Title: Improvements in fuel cells
IPC: H01M4/86
Filed: 1968-03-29
Abstract: 1,204,540. Fuel cell electrode. GENERAL ELECTRIC CO. 29 March, 1968 [26 April, 1967], No. 15107/68. Heading H1B. [Also in Division C7] A fuel cell comprises as fuel electrode an alloy of platinum and 20-80 weight per cent of ruthenium dispersed on a support material comprising a metal silicide, tantalum boride, titanium boride or boron carbide. 2-34 mg. of the alloy may be used per sq. cm. of surface area of the support. It may be prepared by mixing boron carbide particles with solutions of a platinum salt, and a ruthenuim salt and nitric acid, drying the treated particles, grinding and sieving them and reducing them with H 2  gas. The platinum salt may be Pt(NH 3 ) 2 (NO 2 ) 2  or H 2 PtCl 6  and the ruthenium salt may be RuNO(OH) 3 H 2 O or ruthenium nitrate or chloride. The reduced particles may be mixed with an aqueous suspension of PTFE as binder and applied to a platinum grid which is dried before spraying on a surface film of PTFE. The fuel may be a mixture of hydrogen and 2-10 weight per cent of carbon monoxide, the oxidant air and the electrolyte sulphuric acid. The oxidant electrode may comprise Pt black with PTFE as binder. A particular embodiment is shown in Fig. 1. The fuel may be a reformed hydrocarbon prepared in reformer 32. Where ambient air is the oxidant end-plate 20 may be omitted.
Patent GB-181948-A (GB)
Title: An improved machine for cleaning and polishing the heads of syphons and the like
IPC: B24B19/00
Filed: 1921-05-31
Abstract: 181,948. Munckton, S. May 31, 1921. Disc apparatus.-A machine for cleaning and polishing siphon-bottle heads &c. comprises a pedestal 1 provided with a head-piece formed with an inclined bearing 9 in which is mounted a spindle. 10 carrying at one end a polishing-mop or other polishing-wheel 11, and at the other end a pulley 12; a belt from a pulley 2 passes to the pulley 12 over jockey-pulleys 22. Each of the arms 7 of the head-piece has in its inclined part 13 a slot 14 in which is adjustably mounted a bearing 15 for a spindle 17, and on each of these spindles is mounted a pair of polishing-mops 18 spaced apart so that one of the mops lies in front of, and the other behind, the mop 11. The spindles 17 carry pulleys 20 which are driven in opposite directions by belts from the pulley 2. The siphon &c. is supported during polishing on a rest 23 which is mounted on an arm 24 having a vertical spigot 25 engaging adjustably in a bracket 26; the siphon is moved about during polishing to bring all parts of the head into contact with the mops. Specification 18444/00 is referred to.
Patent GB-934275-A (GB)
Title: Automatic box wrapping system for loose-wrap and tight-wrap work
IPC: B31B15/00
Filed: 1961-04-27
Abstract: 934,275. Box wrapping mechanisms. FMC CORPORATION. April 27, 1961 [May 20, 1960], No. 15195/61. Class 18. A mechanism for applying a wrapper to a set-up box wherein the wrapper is secured to the box by adhesive only at the edges (loose-wrap) or by an overall coat of adhesive (tight-wrap) comprises means for conveying set-up boxes along a path beneath two reciprocable plungers selectively operable to move the box into registering engagement with the wrapper. When the plunger has deposited the box on a wrapper a transfer mechanism moves the box and wrapper to a box-wrapping machine. Blanks from a stack b erected by a staying machine S pass to a conveyer BC, beneath a registering device R to another conveyer BCi where the leading box is positioned beneath a plunger P 2  of a second registering device R 2 . A wrapper W is fed from a gluer G to a suction conveyer C at the end of which a stop E registers the wrapper beneath the plunger P 2 , the box being held above the wrapper between coil springs and against another stop. The plunger P 2  is moved downwardly by members 40, 41 driven through a clutch 42 from a shaft 43. This clutch is connected by a tube 43a to a further clutch 44 which operates the plunger P; engagement of one clutch ensures disengagement of the other clutch. It is preferred to use plunger P for tight-wrap work and plunger Pz for loosewrap work. The transfer mechanism T, similar to that described in Specification 748,753, comprises members 50 reciprocated in supports 54 and carrying fingers 51 which grip the box in co-operation with stops 53. The stops are adjustable. Further stops 85 prevent the box being pushed off the conveyer C. Suction members 56 operated by cams 75 hold the edge of the wrapper above the level of a platen 57 while the box and wrapper are moved off the conveyer by the transfer mechanism. Projections 87 on the cams engage the end walls of deep boxes when the boxes are transferred and ensure that they are horizontal. U.S.A. Specifications 2,074,561 and 2,144,338 also are referred to. Reference has been directed by the Comptroller to Specifications 748,753 and 748,796.